History of Trigonometric Identities

HomePage | Recent Changes | Preferences

	Revision 23 . . October 7, 2001 1:05 pm by AxelBoldt
	Revision 22 . . (edit) October 7, 2001 8:33 am by (logged).123.179.xxx *[redoing what I accidentally undid.]**
	Revision 21 . . (edit) October 7, 2001 8:31 am by (logged).123.179.xxx *[rearranging sections for a logical progression.]**
	Revision 20 . . (edit) October 7, 2001 8:30 am by (logged).123.179.xxx *[fixed type-o]**
	Revision 19 . . October 7, 2001 8:24 am by (logged).123.179.xxx *[added link to table of integrals and baiting someone to finish the geometric definition of dsinx/dx]**
	Revision 18 . . September 24, 2001 8:29 am by AxelBoldt [Let's not remove information]
	Revision 17 . . (edit) September 24, 2001 6:36 am by BlackGriffen *[added note about how to differentiate all trig functions.]**
	Revision 16 . . September 18, 2001 10:42 pm by AxelBoldt

Difference (from prior major revision) (no other diffs)

Changed: 84c84

If the trigonometric functions are defined in terms of geometry, then their derivatives can be found by first verifying that lim_x->∞ sin x / x = 1 and...; if they are defined by their Taylor series, then the derivatives can be found by differentiating the power series term by term.

If the trigonometric functions are defined in terms of geometry, then their derivatives can be found by first verifying that lim_x->∞ sin x / x = 1 and then using the limit definition of the derivative and the addition theorems; if they are defined by their Taylor series, then the derivatives can be found by differentiating the power series term by term.